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Enter a value, an expression, or a term with a variable like 10^n+1 to list a range. Switch to Database id to look a number up by its stored id. Reading never stores anything; use Create to add a number to the database. See the expression syntax & functions reference.

P · Proven prime
id #1100000009053655342 1,013 digits created 2026-08-07

Value

16279810525756255930625269533949628860525941029143978937676057887091615745256448524206646400432466481980168955224255055025342130610948695804862191248321722685993063934321355868297627426942467707769550114752297887684295864732192017923408505274138080189704511554985742875608354685038596607307548516038899429097628550244088069215967423847915527241358080246507055974542153769938831385899084463988196161500522084817627115358843164925977168169089793844720455734639571265025406748272428944586001679745713073344402596937957154788405153786775398601512758941514147668506393472647162207838736274509085429895982234511679085622673109548786194004250992431144041015941915800232157954573050584096367299534778071702026245859368122604903834523220424207227753898825785893917481943849264727685071759975959218363357081089722004337093393965446572615390808093231500553966434860574472873528585961627828936319047062536128538760059415937742047087385661720908451509785220941325007021535938084394011903269106017525394677186566094617645430531
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Is factor of

Primality

Certificate chain stepproven prime

Proven as step 101 of the certificate chain of a 2,205-digit prime (169 intermediate primes).

Certified number2,205-digit prime
Certificatedownload
Certificate chainshow step 101 of 169

N-1 and N+1

Checking N-1 / N+1 factorization…

From the command linefdb · curl
fdb
fdb number id:1100000009053655342 --detail 2 --decimal
curl
curl -s 'https://factordb.com:4059/rpc' -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"get_number","params":{"target":{"id":1100000009053655342},"decimal":true,"detail":2}}'